Ander



(No Model.)

w. w. ALEXANDER. MAGNETIC POWER EQUALIZER.

No. 430,606. Patented June 24, 1890.

FIG.3.

fi T IPIV/EIJTOR, if mmw W/lzewmq mam n4: nouns runs cm, Moro-mum, mmlnaton. o c.

UNITED STATES PATENT OFFICE.

\VILLIAM V. ALEXANDER, OF KANSAS CITY, MISSOURI, ASSIGNOR TO THE GILL-ALEXANDER ELECTRIC MANUFACTURING COMPANY, OF SAME PLACE.

MAGNETIC-POWER EQUALIZER.

SPECIFICATION forming part of Letters Patent Application filed April 23, 1889.

To all whom it may concern:

Be it known that I, WILLIAM W. ALEX- ANDER, a citizen of the United States of America, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Magnetic-Power Equalizers, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to improvements in means to connect the armature of an electromagnet with mechanical devices; and the objects of my improvement are, first, to provide means to compensate for the increased attraction that an armature receives from an electro-magnet as it approaches the pole or poles thereof and obtain a more uniform power from said attraction; second, to afford facilities for the proper adjustment of the parts when worn by use, and, third, to utilize the magnetic attraction that the electro-magnet has for the armature at distances farther from and also much closer than heretofore deemed practicable. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is aside view of amagnetic-power equalizer constructed in accordance with my invention, in which the armature is hinged to an angular iron frame or extended heel-iron carrying also theelectro-magnet, and a toggle is used to transmit the motion of the armature to any resisting force or device or body applied againstthe armature through said toggle. Fig. 1: is a bottom view of the rigid bearing of the toggle, showing its adj ustability. Fig. 2 is a side view of a modification of the same magnetic equalizer, in which the armature is hinged to one of the poles of the electro-magnet and adapted to be attracted by the other pole, and a toggle-joint is also used to transmit the motion of the armature. Fig-2 is a top view of the heel-plate, showing its adjustability. Fig. 3 is a side view of another modification of the same magneticpowcr equalizer, in which the armature is hinged to one of the poles of the electro-magnet and adapted to be attracted by the other No. 430,606, dated June 24, 1890.

Serial No. 308,250. (No model.)

pole, and a toggle-joint is also used to transmit the motion of the armature; but the re sistance is applied to different portions of the toggle-arms. Fig. 4 is a diagram representing in side view a portion of an electro-magnet armature and its toggle, having one of its arms extended beyond its stationary pivot and showing the toggle in two positions. Fig. 5 is a side view of a modification of the same magnetic-power equalizer, in which the toggle and armature are of substantially the same form as in Figs. 1 and 2; but one end of the armature is hinged to one of the iron heads of the electro-magnet and the opposite end is in position to be attracted by the other iron head. Fig. 6 is a side view of the same magnetic-power equalizer, in which one of the spools of the electro-magnet is shown broken away to exhibit aportion of the farthest spool, and the armature is carried bya lever having one end pivoted to the base of the device and its opposite end connected to the toggle. Fig. 7 is a side view of the same magneticpower equalizer, in which one end of the armature is pivoted to one of the poles of the electro-magnet and the other to the toggle, and one of the arms of said toggle is extended in opposite directions beyond its knee-pivot. Fig. 8 is a side View of the same magneticpower equalizer, in which one end of the armature is hinged to one end of an angular frame, as in Fig. 1, and the opposite end is connected with one arm of a toggle, and the knee of said toggle is connected to one arm of a second toggle, and thus a multiple toggle is produced and a magnified result is obtained. Fig. 9 is a side View of the same magnetic-power equalizer as shown in Fig. 1, but with the toggle fully extended and the electro-magnet adjustable upon its support. Fig. 10 is a side view of a portion of an electro-magnet, showing the two poles and'one end of the armature hinged to one pole and the opposite end connected to a multiple toggle. Fig. 11 is a side view showing the armaturelever indirectly operating a toggle by means of a lever and connecting-rod.

In said drawings, 13 represents the base of the device, upon which is mounted the support or heel-iron II, the latter carrying the electro-magnet E, having the core 0. The armature is represented at A and the toggle at T, the latter consisting of. at least two arms i and i of which the arm i has one end pivoted to the rigid post 1), that can be made adjustable, as shown in Fig. 1, the lower end of said post passing through a slot in the base B. The arm 23 has a body or lateral extension 25 to which the resistance R is attached. The extension {4 may be in the sameplane as the arm or it may be 011 one side thereof by having it rigidly attached to the pivot shaft or pin. and also one end of the arm I? rigidly attached to said pivot-pin.

In Figs. 1 and 2 a retractile spring S has one end suspended from a rigid point, while the other end is attached to the knee of the toggle-joint to keep it retracted and the armature A away from the core of the electromagnet when said electro-magnet is demagnetized. It is important that means be provided for overcoming the residual magnetism in the core of the electro-magnets immediately after being magnetized and the armature attracted for withdrawing the armature to normal position. Said means should otter their greatest power when the armature is against or close to the poles of the electromagnet. I obtain the most uniform result by attaching a spring or weight at or close to the knee of the toggle. In Fig. the resistance Rv is also utilized as a spring to bend the arms I? and i of the toggle at their knee.

In Fig. I a weight \V is used either as a resistance or to bend the toggle and retract it. The arm 1' may be either bentadjacent to its pivot or entirelystraight, as shown in the detached detail t and t" in the upper part of Fig. I.

In Fig. 5 one end of the armature A is hinged to the iron head M of the electromagnet, and its opposite end is in position to be attracted by the opposite head of pole M A compressed spring S is placed under the knee of the toggle to bend it, and the resistance can be applied to the body or arm t, which is rigidly connected with the arm i In Fig. (3 the armature A is carried by a lever A pivoted to the base, and an adjustable spring S, attached to an extension of the toggle, can be used as resistance. The electro-magnet is adjustable by means of the screw c, secured to its heel-plate and connected to the post p by two jam-nuts.

In Fig. 7 the armature A is pivoted to one of the poles or core C of the electro-magnet, and is connected at the opposite end with the arm i of the toggle, while the arm pivoted to the post 1), has its opposite end t extended beyond the knee of the toggle and is connected with the resistance-spring S.

In Fig. 8 the armature A is suspended, as in Fig. 1; but the knee-joint of the arms t and t is connected with another toggle consisting of the arms 25 and 25". The latter arm 25 has one end pivoted to the post p, and the opposite or knee end is connected with the weight IV by means of the resistance-cord R.

In Fig. 9 the armature A is suspended, as in Figs. 1 and 8; but the electro-magnet is adjustably retained by means of a screw 8, passing through the heel-iron II, with a spring and a nut upon said screw, and a bent spring is placed under the toggle T.

I11 Fig. 10 the armature A is hinged to the overhanging pole or heel-plate II of an electro-magnet, of which the other pole or core is shown at O, and to one end of said armature is attached one end of a multiple toggle T, the opposite end of which is retained by a post p, and the resistance R can be applied to either one of the knees or arms of said toggle.

In Fig. 11 the armature A is carried by a lever A pivoted at a to a post secured to the base B. The upper end of the lever A is united by means of a connecting-rod r with a lever L, pivoted at Z to a post- I, and one end of said lever is connected to the arm 25 of the toggle, its arm i being pivoted to a post p, and the resistance Ris applied to said arm i and by these means said resistance is indirectly transmitted from the toggle to the armature.

Having 110w fully described my invention, I claim 1. The combination of an eleetron'iagnet and a toggle with an armature having one end hinged to one pole of said electro-magnet and the other end connected to said toggle, substantially as and for the purpose set forth.

2. The combination of an electro-magnet, its armature hinged to one pole of said electro-magnet, a toggle connected with said armature, and a spring connected with said toggle, substantially as and for the purpose described.

3. An electro-magnet and a pivoted armature, in combination with a pair of togglelinks, one of which is pivoted at its free end to said armature and a body fixed to the other link and adapted to rotate therewith.

In testimony whereof I attix my signature in presence of two witnesses.

IVILLIAH IV. ALEX ANDER.

Vitnesses:

DAVID ELLISON, WM. W. SMITH. 

